13650344144 has 20 divisors (see below), whose sum is σ = 26561057796. Its totient is φ = 6795877632.

The previous prime is 13650344137. The next prime is 13650344159. The reversal of 13650344144 is 44144305631.

It can be written as a sum of positive squares in 2 ways, for example, as 7380871744 + 6269472400 = 85912^2 + 79180^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1827059 + ... + 1834514.

Almost surely, 2^13650344144 is an apocalyptic number.

It is an amenable number.

13650344144 is a deficient number, since it is larger than the sum of its proper divisors (12910713652).

13650344144 is a wasteful number, since it uses less digits than its factorization.

13650344144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661814 (or 3661808 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 13650344144 its reverse (44144305631), we get a palindrome (57794649775).

The spelling of 13650344144 in words is "thirteen billion, six hundred fifty million, three hundred forty-four thousand, one hundred forty-four".